%!TEX TS-program = xelatex
%!TEX encoding = UTF-8 Unicode

\documentclass[11pt,tikz,border=1]{standalone}
\usepackage{pgfplots}

\begin{document}

\begin{tikzpicture}
  
  \draw[->] (-5,0) -- (5,0) node [right] {$z$};  
  \draw[->] (0,0) -- (0,4) node [above] {$s(z)$};
  
  \draw[orange,thick,domain=-5:5,samples=301,yscale=4] plot (\x, {(1/(1 + exp(-\x))) + 0.2 * sin(10 * deg(\x)) * exp(-abs(\x))});
  
\end{tikzpicture} 

\end{document}
